<h3>Answer: C) none of the equations are identities</h3>
If you plugged theta = 0 into the first equation, then you would have
sin(45) + cos(45) = sin(0) + cos(0)
sqrt(2) = 1
which is a false equation. We don't have an identity here.
The same story happens with the second equation. Plug in theta = 0 and it becomes
cos(60) - sin(60) = cos^2(0) + tan(0)
1/2 - sqrt(3)/2 = 1 + 0
-0.37 = 1
which is false.
Answer:
I think its associative property but I am not sure.
Step-by-step explanation:
It can not be simplified anymore
First, move like terms on one side. Next, add them and divide. See the attachment for solution.
Answer:
x=25°
Step-by-step explanation:
The given angle is a 90° angle. We know this because of the little square in the corner. This means that both angles must add up to 90°:

Insert the known values:

Solve for x. Subtract 65 from both sides:

The missing angle, x°, is 25°.
:Done